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Accounting & Legacy Data Cleanup

A scoped, CA-supervised reconstruction of historical ledgers — opening balances corrected, suspense accounts cleared, and books rebuilt to Ind AS and tax standards before your ongoing retainer begins.

What you get

Outcomes

  • Opening balances reconstructed per Ind AS and Income Tax standards — audit-ready from engagement close
  • Every suspense and sundry account cleared, with each entry traced to a source document
  • Recoverable Input Tax Credit surfaced and documented for the full backlog period
  • All bank statements reconciled line-by-line — zero untracked cash or silent ledger gaps
  • TallyPrime, Zoho Books, or QuickBooks migrated with complete transaction history intact
  • Clean foundation established for day-3 month-end close from the first retainer cycle

Messy books are rarely the result of negligence. They accumulate through growth, staff turnover, and accounting software that was never configured for the volume it eventually absorbed. The damage is structural: phantom cash balances from unreconciled bank accounts, Input Tax Credit permanently lost because purchase registers were never matched against GSTR-2A, and an opening balance sheet that no statutory auditor can sign off on without a qualification.

A legacy cleanup engagement is a scoped, one-time reconstruction — not a patch on the surface. We trace every balance sheet item to a source document, clear every suspense account, and rebuild the historical data to the standard your auditor, lender, and the Income Tax department will accept without question. The output is a clean starting point: books that close on time, comply without scrambling, and can be handed to any CA in the country without a two-week explanation of what went wrong and when.

What the cleanup resolves

Three failure modes we fix

Phantom cash eliminated

₹0

Every bank account reconciled line-by-line. Untracked transactions traced to source documents.

ITC position documented

100%

Recoverable GST credits identified before the legal claim window closes permanently.

Migration window

48 hr

Full transaction history moved to Zoho Books or QuickBooks with zero data loss.

The cost of inaction

Unreconciled ledgers vs. a reconstructed clean foundation

The legacy trap

Years of accumulated accounting debt

  • Unreconciled bank statements generating phantom cash — management decisions based on numbers that do not exist
  • Input Tax Credit permanently lost because purchase registers were never matched against GSTR-2A
  • Bank loan and OD applications rejected because the balance sheet cannot be independently verified
  • Year-end statutory audit qualifications and penalty exposure that compounds each quarter it goes unaddressed

Post-cleanup

A clean, auditable foundation built to last

  • Penny-perfect bank reconciliations — every transaction tied to a source document with a structured exception log
  • ITC position computed for the full backlog period — recoverable credits surfaced and claimed within the legal window
  • Balance sheet that any bank, investor, or statutory auditor can verify without qualification
  • Month-end close achievable in three days, not three weeks — and sustainable that way going forward

Core scope areas

What the engagement covers

Three interlocking workstreams. Ledger reconstruction establishes the foundation; reconciliation proves it; migration preserves it across platforms.

Ledger reconstruction

Opening balances rebuilt from source documents — debtors, creditors, loans, fixed assets, and provisions traced individually. Ind AS treatment applied for provisions and lease obligations; asset depreciation recalculated per Companies Act Schedule II. The CA reviews and signs off before the period is locked.

Suspense clearance

Every entry in sundry debtors catch-alls, suspense, and miscellaneous ledgers investigated and reclassified. GST, TDS, and expense misclassifications corrected with a documented trail — each adjustment referenced to the source transaction so it is audit-defensible on inspection.

Platform migration

Full database extraction from legacy TallyPrime, Busy, or Excel into Zoho Books or QuickBooks Online. Transaction history preserved, chart of accounts mapped to GST classification heads, and opening balances verified in the target system before handover.

A balance sheet that cannot be verified is not a record of your business — it is a liability that compounds every quarter it goes unaddressed.

CA Pardeep Jha · Founding Partner

When this engagement is the right starting point

Legacy cleanup is a one-time, scoped engagement — not the correct path for every client. It is designed for businesses where historical books are structurally compromised, not merely behind on entries. The diagnostic call takes 30 minutes and confirms whether cleanup or direct onboarding to a monthly retainer is the right sequence.

Transition from a previous CA

Books held by an outgoing accountant, access under negotiation, no verified closing balance from the prior period. We reconstruct from whatever documents are available and establish a clean, documented handover basis.

Multi-year bookkeeping backlog

Two or more years of transactions recorded manually, partially, or not at all. We reconstruct period by period — prioritising the current financial year for GST and TDS compliance, then working backwards through the historical record.

Statutory audit qualification

Prior-year auditor issued a qualified opinion on opening balances or flagged unreconciled accounts. We provide a source-referenced, documented foundation that supports an unqualified opinion in the current year.

Desktop-to-cloud migration

Moving from TallyPrime desktop, Busy, or Excel to a cloud platform. We migrate the full transaction history rather than starting fresh — preserving financial continuity for lenders, auditors, and Income Tax purposes.

Platform compatibility

We reconstruct and migrate within or between the following systems. If your current software is not listed, the diagnostic will confirm feasibility.

PlatformReconstruction in-placeMigration sourceMigration target
TallyPrime (on-premise or Cloud)YesYesYes
Zoho BooksYesNoYes
QuickBooks OnlineYesNoYes
Busy AccountingYesYesNo
Excel / manual ledgersYesYesYes

Methodology

How we work

  1. Diagnostic and backlog scoping

    Two-to-three day review of existing ledgers, bank statements, and accounting software. We identify structural issues — broken opening balances, suspense accumulation, misclassified GST and TDS — and scope the cleanup effort period by period with a fixed-fee proposal.

  2. Opening balance reconstruction

    Every balance sheet line — debtors, creditors, loans, fixed assets, and provisions — is traced back to source documents and rebuilt to Ind AS and Income Tax standards. The CA reviews and signs off before the period is locked.

  3. Suspense clearance and reclassification

    Entries parked in suspense or sundry accounts are investigated, sourced, and posted to the correct ledger head. Misclassified GST, TDS, and expense entries are corrected with a documented audit trail for every adjustment.

  4. Bank and ledger reconciliation

    All accounts reconciled line-by-line against the ERP ledger for the full backlog period. Every unmatched item is investigated and resolved — nothing left outstanding without a documented reason.

  5. Migration and handover

    If moving platforms, the reconstructed dataset is extracted, mapped, and imported into TallyPrime, Zoho Books, or QuickBooks Online. Opening balances are verified in the new system before handover, and auditor-ready workpapers are delivered.

Scope

What's included

  • Reconstructed opening balance sheet — Ind AS and Income Tax compliant, CA-signed
  • Period-wise bank reconciliation statements with structured exception log
  • Suspense account clearance report — every entry traced, reclassified, and source-referenced
  • ITC computation worksheet for the backlog period — recoverable credits identified and documented
  • TDS liability schedule — uncovered periods quantified with interest and penalty exposure
  • Fixed asset register rebuilt — acquisitions, disposals, and depreciation per Companies Act Schedule II
  • Chart of accounts aligned to GSTR and Income Tax classification heads
  • Data migration package — full transaction history extracted and imported to target platform
  • Target system verification report confirming opening balance agreement post-migration
  • Auditor-ready workpapers with source-document references for every reconstructed entry
  • Migration completion certificate signed by the engagement CA

Common questions

Frequently asked

How long does a typical legacy cleanup take?
Scope drives timeline. A single financial year of backlog — roughly 500 to 1,500 transactions — runs two to four weeks. Two or three years of unrecorded or misrecorded entries extend to six to ten weeks. We scope period by period after the diagnostic so you have a fixed-fee quote and a week-by-week delivery plan before work begins. Priority is given to the current financial year, where GST ITC and TDS exposure is most time-sensitive.
What if our books are several years behind or have never been maintained?
This is the scenario the engagement is designed for. We reconstruct period by period, starting from the earliest available source documents — bank statements, purchase registers, GST returns, and any prior-year audited balance sheet. Where source documents are missing, we work with what is available and formally document the gaps in the workpapers for the auditor. The result is a defensible set of accounts, not a fabricated one.
Can you clean up our books without migrating to a new platform?
Yes. Migration is entirely optional. If TallyPrime or your current software is working, we reconstruct within it — correcting opening balances, clearing suspense, and reconciling banks inside the existing system. Migration to Zoho Books or QuickBooks Online is offered when the client wants cloud access, automated bank feeds, or multi-user collaboration that the current platform cannot support.
What is the GST ITC risk if purchase registers have not been reconciled?
Significant and time-bound. Under GST Act Section 16(4), Input Tax Credit must be claimed by November 30 of the year following the financial year in which the invoice was issued — or the date of filing the annual return, whichever is earlier. Credits not claimed within this window are permanently forfeited with no recourse. Our cleanup computes the ITC position for every unreconciled period, identifies what is still within the legal claim window, and documents what has lapsed — so you can act before the deadline, not after.
How is the engagement priced?
Fixed fee, scoped after the diagnostic. The fee reflects the number of periods requiring reconstruction, estimated transaction volume, and whether migration is included. Single-year cleanups with migration typically fall in the range of ₹25,000 to ₹75,000; multi-year engagements are scoped individually. We do not bill hourly, and the diagnostic itself is a fixed-fee exercise — credited against the cleanup fee if you proceed.
What happens after the cleanup — is an ongoing retainer required?
Not required, but most clients transition directly into our outsourced bookkeeping retainer. The retainer starts from the verified clean foundation established by the cleanup, which eliminates the correction cycle that typically absorbs the first two months of any new engagement. The cleanup is self-contained and delivered in full regardless of whether you continue with us — it is not conditional on a retainer.

Next step

Ready to begin?

Book a 30-minute discovery call. We'll scope the engagement, confirm deliverables, and give you a fixed-fee proposal within 48 hours.